A membrane-bound nuclease directly cleaves phage DNA during genome injection

· · 来源:run资讯

Venezuela's oil is also of poorer quality than its Saudi equivalent. Its sour, heavy crude is difficult to extract and refine, while its high sulphur content makes it corrosive to pipelines. A resurgence of Venezuela's industry could pose problems for Canada, which produces similarly viscous oil and exports much of it to the US, but analysts reckon the risk is minor.

Staying competitive is "not just about being competitive with one another, it's being competitive with short-form video and that's sort of the direction you'll see them going towards," Harrington says.

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